Miley Cyrus Twitter: Amanda Bynes Calls Singer 'Ugly' After Calling Her Fiancé Liam Hemsworth ‘Gorgeous,’ Is The Troubled Star Stealing Miley Cyrus’ Man?

Amanda Bynes tweeted Miley Cyrus on Tuesday, saying "ur ugly" with a recent photo of the singer, a week after she tweeted her fiancé Liam Hemsworth saying he's "the most gorgeous man on the face of the earth," sparking rumors that she's on the prowl, again.

Amanda Bynes and Liam Hemsworth hooked up in 2009 before he got together with Miley Cyrus and eventually got engaged, according to VH1 News.

And as Miley Cyrus' engagement with Liam Hemsworth remains uncertain, Amanda Bynes might try to capitalize on reigniting a lost flame.

But many critics of Amanda Bynes' recent Twitter wars say the troubled former Nickelodeon star is jealous of Miley Cyrus' skyrocketing singing career - one which is earning recognition within the hip-hop community - and that she is attempting to draw attention to her own career in rap.

Miley Cyrus did not respond to Amanda Bynes' tweet nor has she made public comments about the "ur ugly" statement.

Several of Amanda Bynes' followers on Twitter also joined in on the Miley Cyrus "ur ugly" campaign, tweeting several photos of the 20-year-old celeb in her worst-looking moments - making weird faces or caught off guard in candid photos.

The "We Can't Stop," singer, who allegedly spent time with Justin Bieber at her house last weekend, did not respond to or make comments about Amanda Bynes' lust for Liam Hemsworth.

All eyes are on Miley Cyrus, who is rumored to be spending more time with single-and-ready-to-mingle Justin Bieber, and Amanda Bynes, who is pursuing a similar hip-hop career and might even be trying to reclaim a lost love.